Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/src/runtime/coverage/ts_test.go b/src/runtime/coverage/ts_test.go
new file mode 100644
index 0000000..b826058
--- /dev/null
+++ b/src/runtime/coverage/ts_test.go
@@ -0,0 +1,58 @@
+// Copyright 2022 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package coverage
+
+import (
+	"internal/goexperiment"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	_ "unsafe"
+)
+
+//go:linkname testing_testGoCoverDir testing.testGoCoverDir
+func testing_testGoCoverDir() string
+
+// TestTestSupport does a basic verification of the functionality in
+// runtime/coverage.processCoverTestDir (doing this here as opposed to
+// relying on other test paths will provide a better signal when
+// running "go test -cover" for this package).
+func TestTestSupport(t *testing.T) {
+	if !goexperiment.CoverageRedesign {
+		return
+	}
+	if testing.CoverMode() == "" {
+		return
+	}
+	t.Logf("testing.testGoCoverDir() returns %s mode=%s\n",
+		testing_testGoCoverDir(), testing.CoverMode())
+
+	textfile := filepath.Join(t.TempDir(), "file.txt")
+	var sb strings.Builder
+	err := processCoverTestDirInternal(testing_testGoCoverDir(), textfile,
+		testing.CoverMode(), "", &sb)
+	if err != nil {
+		t.Fatalf("bad: %v", err)
+	}
+
+	// Check for existence of text file.
+	if inf, err := os.Open(textfile); err != nil {
+		t.Fatalf("problems opening text file %s: %v", textfile, err)
+	} else {
+		inf.Close()
+	}
+
+	// Check for percent output with expected tokens.
+	strout := sb.String()
+	want1 := "runtime/coverage"
+	want2 := "of statements"
+	if !strings.Contains(strout, want1) ||
+		!strings.Contains(strout, want2) {
+		t.Logf("output from run: %s\n", strout)
+		t.Fatalf("percent output missing key tokens: %q and %q",
+			want1, want2)
+	}
+}